You will never see Likes on reblogs. The Likes go to the original posts only, for reasons I would have thought were obvious. Why should someone get credit for reblogging something someone else has done?

Thank you for the answer, raincoaster.
I was just wandering why, if I add some relevant content commenting the post I reblogged, the content itself can't receive Like (as it happens, in fact, according to my dashboard).
Here an example:http://icalamari.com/2013/01/12/2581/
On which I received three Likes, unfortunately invisible to anyone.
Francesca